Accounting machine



May 26, 1953 mm J NSG H ELDPE V AELN ICROE U PARE May 26, 1953 P. SPURLINO ETAL- 2,639,857

ACCOUNTING MACHINE Filed Jan. 21, 1950 6 Sheets-Sheet 2 25 236 ALFRED e. KIBLER 5 235 RUDOLPH J. MOSER a 232 EUGENE H. WOLF THEIR ATTORNEYS y 1953 P. SPURLINO ETAL 2,639,857

ACCOUNTING MACHINE Filed Jan. 21, 1950 6 Sheets-Sheet 5 435" 40s 3936 in PASCAL SPURLINO v, ALFRED e. KIBLER 303 RUDOLPH J. MOSER 427 424 a EUGENE H. WOLF THEIR ATTORNEYS y 26, 1953 P. SPURLINO ETAL 2,639,857

ACCOUNTING MACHINE Filed Jan. 21, 1950 6 Sheets-Sheet 4 r i329 zoe l INVENTORS 303 PASCAL SPURLINO ALFRED G. KIBLER RUDOLPH J. MOSER 8 EUGENE H. WOLF THEIR ATTORNEYS y 1953 P. SPURLINO ETAL 2,639,857

ACCOUNTING MACHINE Filed Jan. 21, 1950 s Sheets-Sheet 5 93 79 FIG.I3 94 80 O 70 8| 78 3% h th 7? iNVENTORS PASCAL SPURLINO ALFRED G. KIBLER RUDOLPH J. MOSER a EUGENE H. WOLF Ill" @MLM THEIR ATTORNEYS M y 1953 P. SPURLINO ETAL 7 ACCOUNTING MACHINE Filed Jan. 21, 1950 s Sheets-Sheet e i? 468- $1 \47 INVENTORS 5 PASCAL SPURLINO 67 ALFRED e. KIBLER T RUDOLPH J. MOSER a EUGENE H. WOLF i Q %MM Tug-D 4% THEIR ATTORNEYS Patented May 26, 1953 UNITED STATES PATENT OFFICE ACCOUNTING MACHINE Application January 21, 1950, Serial No. 139,848

17 Claims.

This invention relates and similar business machines, and is directed particularly to a machine having associated therewith record material sorting compartments which may be electrically operated and controlled from an accounting machine, whereby a signal is given to the operator to indicate into which compartment the operator should place the record material relating to the particular transaction being recorded by the accounting machine.

More particularly the present invention relates to a particular novel mechanism or means for causing the indicating means to remain in an indicating position after the completion of th operation of the machine. Moreover the indicator in the present invention is caused to be moved into its indicating position upon the depression of the key associated with that particular indicator. Prevously this indicating means was operated only after the differential mechanism of the machine had been positioned.

The main reason for retaining the indicating means in an operated position is to give the operator more time in which to deposit the check ,1;

in the sorting bin or box associated with the particular indicator which has been operated to indicate that that is the particular compartment into which the check should be deposited, this of course being when checks are being run through the machine and sorted in connection with bank proof operations.

This feature of retaining the indicating mechanism in its operated position is also of value when an error has been made and that error is immediately discovered by the operator.

However, there is other mechanism in connection with this present invention for correcting errors when one has been made. Usually these errors are found when the operator takes the balance and if the crossfooter or balance totalizer does not balance out to zero the machine is locked against release, and therefore the operator must determine where the error has been made. To do this the operator reads the crossfooter by depressing the Error Key to determine the amount of the error, and then examines what is know as the master audit sheet to determine where the error has been made, and thereby determines into which of the sorting bins or compartments this check has been placed. When this has been determined the operator depresses the key corresponding to the bin which has the error check therein, and then sets the complement of the amount of the error upon the keyto accounting machines iii board of the machine and then depresses a star key. The particular function of the star key will be later described in connection with the detailed description of the mechanism.

The invention is shown embodied in an accounting machine of the type described in the following United States Letters Patents, and reference may be had to them for a complete showing and complete description of standard mechanisms fully disclosed therein, either in the drawings or in the specifications. These patents are: United States Patents Nos. 1,619,796; 1,747,397; and 1,761,542, issued March 1, 1927, February 18, 1930, and June 3, 1930, respectively, to Bernis M. Shipley; No. 2,175,346, issued October 10, 1949, to Maximilian M. Goldberg; No. 2,141,332, issued December 27, 1938, to Charles H. Arnold; No. 1,693,279, issued November 27, 1928, to Walter J. Kreider; No. 2,361,662, issued October 31, 1934, to Pascal Spurlino and Konrad Rauch; No. 2,416,598, issued February 25, 1947, to Pascal Spurlino and Konrad Bauch; and 2,417,563, issued March 18, 1947, to Rudolph Moser.

The machine embodying the present invention, as now constructed, is well adapted for use by banks, and especially in the proof departments thereof, where the various items are listed and distributed, and deposits checked for proof bal ance at the end of the day.

Each bank in its proof department keeps an accurate record of each transaction handled by the bank, which transactions generally come from incoming mail, from out-of-town or transit banks, incoming clearings from local banks, and receiving and paying items handled by the tellers of the banks. Many banks require their lists of checks or items paid by another bank to be accompanied by a printed list of checks paid by a bank when these checks are sent back to the bank on which they are drawn.

There is in connection with the present invention a check countin mechanism which counts each check and prints the consecutive number check opposite the amount of the recording of each as said checks are recorded in the machine.

In the highest order amount bank the differential mechanism is what is known as a combination differential and is used, not for accumulating in the highest order totalizer wheel, but for printing any desired data which the bank may wish to print in connection with that particular column; however, there is a totalizer wheel associated with this bank, and during the taking of totals the difierential mechanism is utilized for taking the total from the crossfooter which might have an amount in this overflow wheel of re crossfooter totalizer.

There is a mechanism in the machine under the control of a star key, whereby said combination differential bank may be changed from what is known as a print bank to a total control bank; that is, it may be utilized to take the amount from the highest overflow wheel so as to print such amount, which is a part of the total amount, when the balance totalizer is cleared. This bank is also utilized when an error has been made by the operator of the machine in setting up any of the amounts of any of the checks as she runs them through the machine to show the amount on the highest order wheel of the crossfooter, since an error is usually discovered when she clears the crossfooter. If an error has been made and the crossfooter does not show zero, the machine will not be released for an operation, and then it is necessary for the operator to take a reading operation of the amount which is on the crossfooter and from this reading or subtotal operation, the amount of the error may be determined and the operator then searches for this error on the master audit strip as above mentioned.

In order to properly sort the checks as they are recorded in the machine, the machine herein is provided with a plurality of compartment t receive the manually sorted record materials or checks, and is adapted for use in connection with, as above mentioned, a central control accounting machine of the type commonly used in bank clearing houses, and particularly such as that shown in the above mentioned patent to Spurlino and Ranch, No. 2,361,662.

A separate compartment is used for each bank associated with the clearing house, and all checks drawn or deposit slips credited to each of said banks are manually placed in the appropriate compartments after the amounts and other data appearing thereon have been recorded by the accounting machine.

In order to reduce the possibility of the operators filing such record material in the wrong compartment, the present invention also provides an individual indicator for each compartment, which indicators are normally in the non-indieating position, but which may be selectively moved from a non-indicating position into an indicating position to direct attention to their respective compartments, so that the operator will place the record material in only the selected one of the compartments. Classification keys on the accounting machine, which identify the different banks, are employed to selectively control electrical means for operating the indicators in such a manner that only the compartment corresponding to the particular bank involved in the last registration on the accounting machine is called to the attention of the operator, so that the record material relating to that particular registration will be filed in the proper compartmerit.

As above mentioned, these indicators in previous machines were not operated until after the machine had. started through its operation, or in other words, until after the differential mechanism had. been set. However, in the present invention, these indicators are operated immediately upon depression of the key by the operator so that the operator may have more time to deposit the check in the proper compartment. Moreover this indicator is not closed at the completion of the operation of the machine, as was previously the case, but is held in an open position for a definite length of time after the machine has completed its operation; therefore giving the operator more time to deposit the check after having taken the records therefrom and entered them into the machine.

It is, therefore, an object of the present invention to provide a sorting device of the character described, having signalling means in the form of indicators, which are selectively operable by remote control from an accounting machine or the like, and which are maintained in an indicating position subsequently to the completion of the operation of the machine.

Another object of the present invention is to cause the indicators to function immediately upon depression of the compartment selecting key by the operator.

Another object of the present invention is to provide the machine with control means whereby one of the differential mechanisms may be changed from a printing control differential to a total control differential upon the depression of a certain special key in the machine.

Another object of the present invention is to provide a special differential mechanism in the machine which under certain conditions controls the printing of data set up under control of depressed keys and in other conditions is adapted to control the printing of data, which is controlled from the totalizer.

With these and incidental objects in view the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims, and a preferred form or embodiment of which is hereinafter described with reference to the drawings which accompany and form a part i of this specification.

In said drawings:

Fig. 1 is a diagrammatic view showing a portion of the keyboard of the machine with which the present invention is adapted to be used.

Fig. 2 is a side elevation of one of the transaction banks, particularly what is known as row 3, and shows the mechanism in connection with this bank which determines or controls or assists in the control of the release of the machine.

Fig. 3 is a detail view of the Lock Release" key and its connection to the means whcih assists in releasing the machine when necessary after an error has been made.

Fig. 4 is a side elevation of row I or the total row, and shows the mechanism in connection with this bank which under the control of the Error key may release the machine when an error has been made.

Fig. 5 is a detail of a part of the mechanism in connection with the totalizers to cause the machine to look when an error has been made in the totalizer, and the totalizer does not come to zero when said totalizer or crossfooter has an error therein.

Fig. 6 shows the same mechanism as Fig. 5, except that it is in the position shown when the crossfooter stands at zero, so that the machine may be released at this time.

Fig. 7 is a side elevation of the lowest order item count bank which bank also carries the special or star key.

Fig. 8 is a front view showing a part of the mechanism for controlling the machine for its various functions.

Fig. 9 is a detail of part of the mechanism shown in Fig. '7 in connection with the control of the release of the machine when an error has been made.

Fig. is a side elevation, partly broken away, showing a portion of row i or the total row, and also a portion of the combination bank mechanism, the latter being used to control the printing of data under control of the keys, or used to control the printing of data under control of the highest order totalizer wheel, both row I and the combination bank combine to control the machine under certain conditions when errors have been made.

Fig. 11 is a wiring diagram for controlling the release of the machine under certain conditions when an error has been made.

I Fig. 12 is a detail view showing one electrical switch in the machine release circuit and operated only when an error has been made and also another switch operable to complete a holding circuit for the sorting box indicator operating magnet.

' Fig. 13 shows a portion of the machine releasing mechanism, the triping mechanism for said machine releasing mechanism, and the electrical means which operates said tripping mechanism.

Fig. 14 shows a portion of a compartment indicator and a part of its operating mechanism in normal position.

Fig. 15 shows the same mechanism as that shown in Fig. 14, but in moved position.

Fig. 16 shows one of the sorting compartments with the indicator in its non-indicating position and also shows an indicator for an adjacent compartment also in its non-indicating position.

Fig. 17 shows one of the sorting compartments with the indicator in its normal position in which the compartment is closed against the insertion of a check being manually sorted.

Fig. 18 shows a wiring diagram of the controls for controlling the delayed action on the compartment indicator.

Fig. 19 shows the switches for controlling'the holding circuit for the compartment indicator operating solenoid.

GENERAL DESCRIPTION Described in general terms, the machine embodying the present invention is of the type generally disclosed Shipley, Goldberg and Spurlino patents. These patents disclose a plurality of totalizers into which may be distributed various amounts, according to the business system for which the machine is built.

The invention is particularly adapted to be used'on a machine shown in the above mentioned Spurlino and Ranch Patent No. 2,361,622, which machine is what is known as a bank proof machine, used in banks, and the totalizers in such machines are adapted to receive the many and various items constituting individual transactions that are handled in the ordinary banking business.

The patents mentioned also disclose what are known in the art as add and subtract totalizers or crossfooters, from which balances may be printed at any time desired.

The machine with which the present invention is adapted to be used has a master tape or audit strip and also a plurality of individual detail strips, and is also adapted to print what is known as a departmental total slip when taking totals of the various departments.

' The machine keyboard is arranged for taking in the above mentioned care of all business in connection with the bank whereby all transactions handled by the bank may be listed in this machine and a record made of each of these transactions. The machine is therefore provided with the usual banks of amount keys of sufficient capacity to take care of the ordinary business of any bank.

There are also three rows of what are known in the art as control keys, for the purpose of selecting various totalizers for the distribution of the transactions entered in the machine. There is also a row of total taking control keys which control the machine for the purpose of taking totals from the various totalizers at the close of the day when it is desired to clear out the machine to render it ready for business the following morning.

Sorting racks which are used in connection with the present invention are of the general type shown in the Spurlino and Rauch Patent Nos. 2,361,662 and 2,416,598.

However, the indicator devices in the present invention are larger than the indicator devices shown in the Spurlino and Ranch patents. In those patents the indicator devices do not cover the entire tops of the sorting compartments. whereas in the present invention, as is particularly shown in Figs. 16 and 17, the indicator devices cover substantially the entire tops of the sorting compartments, and the indicator devices in the present machine have a control which has been herein termed a delayed action device, which causes the indicator to remain open for a certain period of time after the completion of the operation of the machine. This gives the operator more time to deposit and sort the checks in the indicated compartments than was previously had in connection with the earlier machine, such as that disclosed in the above mentioned Spurlino and Ranch patents. Moreover the indicators in the present invention are so controlled as to be immediately operable on the depression of the selecting keys, which are for example, the keys in rows 3 and 4, shown diagrammatically in Fig. 1, whereas in the earlier machines the indicators do not operate until after the differential mechanisms have started to move.

The machine is provided with a star key. which under certain conditions controls the re lease of the machine when an error has been made, and also controls one of the special differential mechanisms in this machine, which is known as a combination bank difierential, which will be hereinafter described in detail.

When an error has been made, such error will not show up until the operator takes the, total from the crossfooter, at which time, if the crossfooter is not at zero it means that somewhere along the line an error has been made, because the crossfooter at the end of a particular run of checks should stand at zero, and when in this position the machine can be released. However, if the crossfooter is not at zero the machine can not be released when the operator presses the Error, alone, key to clear the crossfooter, and therefore an error has been made.

When any error has been made, the operator first reads the crossfooter by depressing the Lock Release key in row 2 and. then depressing the Error key in the total row, or row I, as shown in Fig. l. The reading of this crossfooter will tell the operator how much the error was, and then she will refer to the master tape and find the error; then press the key corresponding to the compartment having the error check therein. She will then next set up the complement of the amount which caused the error and then press the star key. The depression of this star key makes a normal differential bank out of the highest order amount bank, which is normally a combination bank or a print bank, that is, it does not add into the totaiizer.

The star key also allows all item count banks to add 9 to correct the item count. The adding of 9 in the item count totalizer in each of the denominational orders thereof is the same as subtracting 1 from the total of the count. This is done so as to have the item count correct because the operator has to run another operation after the error has been found, to set up the proper amount which was on the check.

After the amount has been set up on the amount banks, that is, the complement of the amount which caused the error, the star key is pressed. The depression of this key makes the combination bankadd. The operator then presses the plus key in row 2, and this releases the machine and the complement set up on the keyboard is added into the crossfooter, the addition of said complement brings the crossfooter to zero; and then from that point on the operator can start running a new batch of checks.

DETAILED DESCRIPTION Keyboard The keyboard of the machine is shown partly, in diagrammatic form in Fig. l, and includes rows or banks of amount keys 6|. A star key 62 is shown in the 8 position of the righthand row of the check counting difierentials, and the purpose of this key will be hereinafter described.

A row of keys 63 is normally used to control the printing of data set up by the keys in this bank. This is what is known in the art as a combination bank, and as above mentioned, normally is used as a print bank. However, when the star key 52 is depressed, this bank of keys 53 is transformed from a print bank into a bank whereby its differential mechanism is controlled by the highest order of the crossfooter totalizer.

Now beginning at the right side of the keyboard, there are four rows of keys 65, 66, 6'! and 68, which are marked row I, row 2, row and row 4, respectively. The keys 65 are total controllin keys and the keys 66, 57 and 68 control the machine for various types of operations.

For illustrative purposes, the keys of the third and fourth rows are designated for the purpose of entering debits from various local banks and transit banks.

Prior to entering these debits, the total amount of the entire block or debit is first entered in the crossfooter by setting such amount on the amount keys 6!, then depressing the plus key in row 2, when the transaction relates to customers deposits. This, of course takes place after the amount of the total has been set up on the keyboard. This total amount goes into the plus side of the crossfooter, and, as each of the various debits is entered into the machine, which debits may be distributed into any one or all of the totalizers associated with the keys in row 3 and at the same time each debit is subtracted from the crossfooter so that at the end of the entry of the several items of this particular batch the crossfooter should be clear, which, of course is proof that the items are properly listed and recorded. These items may come from the tellers cage, and usually are the deposits made by, customers having checking accounts in the bank.

There is also associated with the machine, as above mentioned, a sorting device consisting of boxes or compartments, into which the checks are placed by the operator after they have been listed in the machine. Each of the bins or sections into which the checks are to be placed alter they have been listed carries, in the present instance an electrically operated indicator, which is operated immediately upon the depression of the keys of rows 3 and 4.

The operator then deposits the check in the bin which has been selected, as indicated by the operation of the indicator. Should, at the end of this run, the crosafooter not stand at zero. when the operator goes to clear the crossfooter, the machine cannot be released due to a lockim mechanism which will be hereinafter described, and therefore a particular series of machine operations must be made to determine the amount of the error and correct the error.

Upon an error, the operator first reads the crossfooter by depressing the Error key in row I, which will read or take a sub-total of the crossfooter, thereby permitting the operator to determine the amount of the error. After this amount has been found, the operator then looks on the master tape to determine where the error was made, and having found that, then depruses the key corresponding to the bin having the error check. After this the operator sets up the complement of the amount which caused the error on the keys GI and 63, and then depresses the star key 62. The star key causes the diffcrential mechanisms associated with the check count differentials to go to the 9 position to add 9 into the subtract side of the crossfooter, thus causing 1 to be actually added into the crossfoote'r to correct the error of the check count. Depression of this star key 62 also changes the row of keys 63 from a reading control bank to a bank whereby the differential mechanism associated with these keys is now set under control of the amount which is now on the crossfooter, so that the amount of the error can be added into the subtract side of the crossfooter.

Machine release mechanism In Fig. 13 there is shown the machine release mechanism, including a release shaft HI, a part oi the mechanism for rocking it in a counterclockwise direction to release the machine, the machine release shaft tripping mechanism, and the electrical device which operates said machine release shaft tripping mechanism.

The means for restoring the shaft 10 to its normal position is not shown herein, but is identical with that which is fully illustrated and described in the above mentioned Shipley Patent No. 1,619,796, and if a description thereof is desired, reference may be had to that patent for the same.

The machine release shaft 10 (Fig. 13) is adapted to be moved in a counterclockwise direction by a strong spring H, mounted in a slot 12 of a link 13 in exactly the same manner as is fully illustrated and described in the above mentioned Shipley Patent No. 1,619,796. The spring H sets on a finger 14 of the link 13 and also engages fingers 15 of arms 16 (only one arm being shown), which arms are mounted on each side of the link 13. A stud ll carried by the arms 16, projects into an arm 18, which is secured to the machine release shaft Ii. Also secured to part of the when the pin 80 is of the tripping 9; the machine release shaft. 'lllis an arm, 19; carrying a flat-sided pin 80.

The shaft 10. is held in its, normal position by the upper end of a trip lever 8|, which is engaged by the flattened pin 8i). and held in. such engagement by. the. spring H. This tripping lever 8! is pivoted on a stud 82, carried bythe left side irame (not shown) It might be. stated here that, the link 13 and arm 18 are mountedadjacentv the right, side frame of the machine in their normal positions.

The tripping lever 8| carries. a Stud 83,, by meansof which said tripping lever at is connected to a link 84. This link 84 is connected by means of a, long stud 85, to. a solenoid core, 86 of a solenoid 81 mounted on a. bracket 08, secured to the left side frame (not shown). A spring 89, connected to the link 8:4. and to. a bracket. 90., secured to the. left side frame, normally maintains the parts in the positions Shown in Fig. 13, whereupon the upper end of the, trip,- ping lever 81. is beneath the hat stud 8B, of the arm 19, which it will be remembered is secured to the machine release shaft 10. A. finger 5| on the lower end of the trippinglever 81 is, normallyheld by a spring 89' in contact: with a re.- silient soundsdeadening block 92 of rubber o similar material secured to the bracket 911,.

By means to be hereinafter described, the Solenoid core 86 is moved to the left, as viewed in 3 Fig. 13, in the direction of the arrow, thus pulling the link as in the same direction, which rocks the tripping lever 8| clockwise, removing its upper end from beneath the hat, pin 80., whereupon the strong spring 1'], through the medium of the stud l1 and the arm 18 rocks the machine release shaft 10 counterclockwise until a surface 83 of the arm 18 contacts a limiting pin .94 carried by the machine right side frame (not shown) Such movement of the machine release: shaft 10, as has been clearly illustrated and described in the above mentioned Shipley Patent No. 1,619,-

798, closes a circuit through a. machine operating motor, thus driving the machine through a normal cycle of operation. I

The solenoid 81 is energized upon the closing of certain microswitches, which will be hereinafter described in connection with the particular control of the operation of the release of the machine by certain of the control keys. In order to prevent an operator from occldentally or intentionally holding down any one of the operating keys, that is, keys which when depressed cause the machine to be released and be driven through an operation of the. machine (and thus causing an immediate second operation of the machine), there is provided a usual non.- repeat pawl 95 pivoted on the stud 8.2, and having a stud 97 held in contact with a surface :98 of the tripping lever ill by means of a spring 99.

The pawl 96 is slightly higher than the upper end of the tripping lever 81, and consequently released by the tripping lever BI and moved downwardly under the tension of the spring 14, it is moved downwardly to the left non-repeat pawl 96, thus holding the tripping lever :8! in its released position at the end of the operation of the machine, and until after the arm 19 is restored clockwise to a position slightly above that shown, and then finally 'rcstored to the position shown in Fig. 13. At the time the arm 19 is slightly above the position shown, the circuit through the solenoid 81 is awoken and consequently the sprin 89 can relever 81 and to the right of the it store the. solen id ore. 8.6. end th link t he right, to. the. position th moving the trippin lever 31 to: th n .icn show-a. so t a when the arm is fiuallx as mesthe posit hown, the flattened pin 85 w ir ctl a ov the upp r end or the br ng ng lever 3-i- Tmnsaction key banks in turn is c it wi h the abo e es ibe solenoid 8?, to in control the release of the mac e sa d sol d operat s t e r pping since he o keys 6 and 68, are all identica mounted. it is be ie ed hat he escription of the bank of keys 5'! will sufilce for all: W th this v mi d and r rin Parti lariy to Flare ther s h n. ey frame n mounted o rods H2 nd H3, a ied by h mas 8 side n m s in exact he same m nn the abo e men i ned pat nts... and pa icularly the abo e mentioned Shir ey a en 0 No. liSLSJ G,

key o this ran ac on ank, row 3 (Fig. 2) carries a pin H4, each pin adapted to cooperate h a s oc a ed s t H5 i rel ing bar M pi t d at t upper end o an, arm il ivoted. a H3v on he k rame a d to arm. (not shown pivoted near the owe end of the key frame HI. Associated with each of he key is a co l sp ot hown) w is of th us al typ wh is, ada e to hold the ke s in their no al ndep essed pos tions in a man er; hich is w l kn w n he art A sprin (not own.) in ains th ba 6. in the positi n show in. i 2 aga st th k y in H4 in th normal Pos tions o the ts a mann r hich s e n n i he a t When the ey 6 s mov d into s dep essed position, and l che in that p s n ymeans lat r describe .v the arm l .F s- 2 by means ci a 1.?! ca ri d thereby. c ntacting a. 121 o an arm 23, pi ot d a od 12.4, rocks said arm I23 in a counterclockwise direction. The arm I also carri s a pin 25. h ch is connecte to a ink 2 pivo ed at 12 to an mm 129, pivo ed n. th machin re se shaft 9' Th a m 19 has a hp 130 adapt d to sooneraie with tch plunger .3 whi h operate a m croswi ch 32 uppor e o a b ack 3 The bracket .133 is secured to a machin fram brace 1.34 by m s 0. sc

When the keys 6'! are in their normal undepressed positions, as shown in Fig. 2, there is a clearance indicated at 136, between the lip I30 and the switch plunger 31.

Upon depression of any one of the keys 6?, its pin H4 moves the bar H6 and rocks the arm H1 clockwise (Fig. 2) and the pin l2! rocks the arm I23 counterclockwise. This causes the link i2! to raise and rock the arm I29 counterclockwise. While this is occurring, the pin 1 M of the key 81, is moving a retaining deten-t UH downwardly against the tension of a spring (not shown) in the usual manner, and just as soon as a flattened part I42 of the pin H4 passes beneath the nose .of the detent I4! and gets be,- neath a shoulder 1.43, the sprin m ves the detent I4I upwardly again into the position shown in Fig. 2, thus retaining the depressed key 61 in its depressed position in the usual manner.

The relations of the parts, that is, the shoulder I43 to the clearance I36 are such that the detent I 4| latches the key 61 in its depressed position just as the lip I30 touches the end of the microswitch actuating plunger I3I. At this time the key is further depressed, whereupon the arm I29 is rocked still further in a counterclockwise direction to move the switch plunger upwardly a distance sufficient to close the contacts of this microswitch I32, which are normally in an open condition. The usual key spring then returns the key 61 slightly upward until the flattened part I42 contacts the shoulder I43, which retains the key in its depressed position. Such upward movement of the key 61 is suflicient to permit the arms I29 and I23 to rock slightly clockwise thus removing the lip I30 from the plunger I3I whereupon the microswitch I32 opens and thus breaks the circuit to the solenoid 81 which is thus deenergized.

When this microswitch I32 is closed it completes a circuit through the previously described solenoid 81, which has for its purpose the function of operating the machine release tripping mechanism so that just as soon as one of the keys 61 is completely depressed, the machine releasing mechanism is released and can function to 1 cause the machine to go through the normal cycle of operation.

However, there is a certain condition, such as when an error has been made, when this switch will not function in this manner. That condition and the complete circuit will be hereinafter described at the proper time.

The keys 53 of row 2 and the keys 68 of row 4 are each associated with a release bar identical with the release bar II6, whereupon the depression of certain of the keys 66 and any one of the keys 68 will operate the microswitch I32 as do the keys 61 of row 3 in the manner above described. To accomplish this the arm I23 is connected by a bail I44 (Fig. 2) to arms associated with the keys 56 and 88, which arms are substantially like the arm I23, so that when certain 'of the keys B6 or any one of the keys 68 is depressed the microswitch I32 will be closed in the manner above described in connection with the keys 61, and for the same purpose.

As has been previously mentioned, there is employed in connection with the present invention a group of sorting compartments which form a unit, and which may be either attached to or separated from the accounting machine. These compartments are selected for the operator to manually sort the checks therein by the use of the keys 61 of row 3 and the keys 68 of row 4, and also certain of the keys 66 of row 2. Such keys 66, 61 and 68 are used to perform all of the usual functions of such types of keys in the accounting machine, namely, release the machine for operation and control the selection of the totalizers and the adjustment of the printing and indicating mechanisms. Said keys 68, Hand 68 above mentioned, also are arranged herein to perform the added function of selectively controlling th operation of indicators on and used in connection with the sorting compartments in such a manner as to indicate to the operator the compartment into which she should file record material from which she has entered into the accounting machine, said compartment of the sorting device corresponding to the classification key operated.

Therefore, each of the keys 61 carries on its pin II4 an insulating roller I46 (Fig. 2), which serves to hold open contacts I41 and I48 while the key 61 is in its normal undepressed position. Both of the contacts I41 and I48 are suitably insulated from their respective mountings. The contact I41 has a normal tendency to move downwardly to engage the contact I48, but is restrained from doing so by the undepressed key 61 above described. A contact bar I49, suitably mounted in the key frame I I I, is connected to all of the contacts I41.

For a further detailed description and illustration of these contacts reference ma be had to the Spurlino and Ranch Patent No. 2,416,598, above mentioned.

There may be times when, after an error has been completed, it is desirable to release the machine without going through the usual error correction procedure, and when this is desired, the operator depresses the Lock Release key 66 of row 2.

This lock release key 66 closes a microswitch so that the machine can be released for operation. This mechanism will now be described.

Referring to Figs. 2 and 3, there is mounted on the usual machine tie rod I58 a lever I5I, having a nose I52, which cooperates with a key pin I53 in the lock release key 66. Pivoted to the lever I5I is a link I54 in turn pivoted to an arm I 55, freely mounted on a shaft I56, supported by the machine side frames. Connected to the arm I55 is a finger I51 adapted to cooperate with a spring plunger I58 mounted in a bushing I58, WhlCh is supported by a bracket I68 carried by the machine frame. This spring plunger I58 is adapted when depressed to operate a plunger I6I of a mi-croswitch I82 to close said switch which is normally in an open position.

Upon depression of the lock release key 66 its pin I53 rocks the lever I5I counterclockwise, whereupon the link I54 rocks the arm I55 and finger I51 clockwise, causing the finger I51 to depress or move the spring plunger I58 to the left to in turn move the microswitch plunger I6I to the left to close the contacts of the microswitch I62, whereupon the machine may be released for operation, that is, the machine release tripping mechanism previously described is operated which in turn permits the machine release shaft 18 to be operated by its spring N (Fig. 13) in the manner previously described.

The bank of transaction or compartment selecting keys 68 of row 4 are identical with those keys 61 of row 3, which have been previously described, and therefore, no further description need be given of them.

' Total key bank The total keys 65 of the total row or row I will now be described. In this control bank there are six control keys 65 having the captions shown in Figs. 1 and 3. These key are slidably mounted in a key fram I16 in turn supported on the 13 Fig. 4, until the flattened portion. oi the pin H1 is below a surface I81 of the nose I18, whereupon the spring I again moves the detent back to the position. shown in Fig. 4, thus retaining the depressed key in its depressed position.

Each of the keys 65 has a pin I81, which is in axial alinement with the pin I'I]: previously described. The pin I81 of the Error" key 65' cooperates with an angular slot [88, and. the pins III of all the rest of the keys 65 cooperate with straight-sided slots I188 of an operating bar I90 slidably mounted on pins I91 supported by the frame I10. A. spring I92 normally holds the left side oi the slot I08 against its pin I81 and also holds the left sides of the slots I89 against their associated. pins I81. All of the keys 65 are maintained. in their normal positions by means of compression springs I93, one of which is associated with each of these keys -5. These springs I93 function. in the normal way, which is well known in the art. The operating bar I90 carries a pin 200, which is engaged by a forked arm I, pivoted on the rod I24. Connected to the arm. 201, by means of a hub 202, is an arm 203 which is connected by a link 204' to an arm 205', pivoted on the machine release shaft I0. The arm 2105 has a. hp 206 adapted to cooperate with a plunger 20'! which operates the contacts of a microswitch 200 in. a manner hereinafter described. The microswitch 208 is mounted on the previously described bracket I33.

Whenever the Error key 65 is depressed, its downward movement causes its pin I87 to move the control bar I90 downwardly, thus rocking the arm 20-1 and also the arm 203 in a counterclockwise direction. whereupon the link 204 rocks the arm 205' counterclockwise and causes the lip 206 toengage and move the plunger 20! upwardly to close the contacts or the microswitch- 208, which completes the circuit through the previously described solenoid 81 (Fig. 13) to operate the machine release tripping mechanism so that the machine may be released for operation upon the depression of the Error key 65.

When any of the other five keys 65 of this control row is depressed, due to the fact that the slots I09, which cooperate with the pins I81 of these keys are straight, the depression of any of said keys consequently does not move the bar I90, and therefore, the microswitch plunger 20! is not operated. Consequently the machine can not be released upon. the depression of any of thefirst four upper keys G5 or the bottom keys 65 of row I or the total control row.

A clearance 209 (-Fig'. 4) between the lip 206 and the plunger 201' is sufilcientto permit the depressed Error key 65' to have its stud I17 below the shoulder I81 of' the nose I18 of the retaining detent H9 so that the key will be positively locked in its depressed position before the plunger 201 is moved a distance inwardly sufiicient to close the contacts of the microswitch 200 in identically the same manner as was described in connection with the lip and the plunger I31, which are associated with. and operated. by certain of the keys 06 of row 2'. and any of the keys 61 and 68 of rows 3 and 4.

Differentially positioned: under control of the keys 650i row I is a total control plate 2I I of the usual type, such as shown in the Spurlino et al'. Patent No; 2,373,510. Pivoted to this control plate 2I I is a link 212 connectedto a bell crank 2 I3 secured to a shaft; 2 I4, supported by the machine side frames. Alsosecured tothis shaft 2 I 4 is a gear segment.- 2I5, mes-hing with a gear sesment 2I 6 which is secured on a shaft H1. The differential positioning of the plate 2I I, under control of the keys through the train of mechanism just described, sets up a printing device to print characters corresponding to the depressed keys 65, as is fully illustrated and described in the above mentioned Spurlino et al. Patent 2,373,510.

Whenever the error key 65 is depressed the plate- 2 is moved counterclockwise under con-'- trol thereof, thereby through the link 2I2, arm 2.13, segments 2 [5 and 210, rocking the shaft- 2H counterclockwise, which rocks a notched plate 220 likewise. This plate 220 is provided with a notch 22 I to cooperate with a roller 222, carried by a bell crank 223. This roller 223 normally held against the true periphery of the plate 220 by a spring 224. This bell crank 2 23 is pivoted on. a stud. 2.2.5 supported by the machine frame. The bell crank 223 also carries an insulating roller 226, cooperating with. a switch. 221 mounted on. a bracket 228 which is supported by the ma chine side frame. This bell crank. 223 holdsthe switch 221 normally closed, as shown in Fig. 1 2. This switch is in circuit with the starting mag net 81, as shown in Fig. 11.

Whenever the Trror' key 65 is depressed and the plate 2-20 moved counterclockwise, so that the notch. 22 I is opposite the roller 2212, thespringfll rocks the bell crank 223-, thus permitting the switch 221 to open and: thus break a circuit through the solenoid 81 to prevent operation: of the solenoid 81, and thus release 01 the machine by closing switch I32 by operation of a key 81 or G8, when there is an. error the crossfooter.

Locking mechanism for the machine releasing mechanism After a batch of checks has been sorted and the total is taken, if the crossfooter does not come out at zero on the plus side, there has been an error made in the subtracting of the number of checks from. the total, which was originally put in the crosstooter, and therefore it is desirable to lock the machine so that the error may be corrected before the operator starts another batch of checks for sorting.

Therefore, themachine release shaft 10 is prevented from moving its full clockwise movement to release the machine for certain kinds of operations; for example, as above mentioned, when an error has been made; in other words when the .crossfooter does not stand at zero at the end of a series of operations involving the sorting of checks of a particular batch.

The mechanism for causing this lock-up of the machine, that is, the prevention of the release of. the machine when error has been made and the crossfooter is not at zero, will now be described.

Secured to the plus wheel of each of the dencminal' orders of the crossfoot'er is a disk 230 (Figs. 5 and 6) having a notch 23].

ihe crossfooter used in the present machine is substantially identical with the crossfooter shown in the above mentioned Colley Patent No. 2,390,870, the Spurl-ino et al. Patent No. 2,361,662, and also the Spurlino et. al. Patent No. 2,375,594.

When the crossfooter is at zero the minus wheels all stand at 9 and. the plus wheels all stand at zero, and when in this condition a pawl 232. (Fig. 6:) engages the notchv 23 This pawl is secured to a shaft 233, carried by the usual totaliaer frame 229. There is a pawl 232" for each denomination order of the crossiooter, in

15 order to cooperate with each of the notched disks 230.

When the crossfooter is in disengaged position, as shown in Figs. and 6, the pawl 232 is held either in engagement with the notch 23!, as shown in Fig. 6, or in contact with the periphery of the disk 230, as shown in Fig. 5, by a torsion spring 234, having one end secured in the totalizer frame 223 and the other end to a pin 235 of an arm 236 secured to the shaft 233. Also secured to the shaft 233 is an arm 23'! adapted to cooperate with a pin 238 secured in the machine side frame.

Since the shaft 233 is carried by the totalizer frame 229, it will receive a movement downwardly as the totalizer is being engaged with the totalizer actuators, not shown herein but similar to those shown in Fig. 7, in connection with the item count bank. During this downward movement of the crossfooter and the shaft 233, the arm 23'! strikes the pin 238 and rocks the pawls 232 counterclockwise to disengage them from the notches 23! just prior to the time the crossfooter becomes fully engaged with the actuators,

so that the totalizer can be properly operated by the actuators.

Then, after the totalizer has been operated to either add or subtract, as the case may be, it is disengaged from the actuators and during this disengagement, as the arm 23'! leaves the pin 238, the spring 234 will rock the shaft 233 and the pawls 232 clockwise until the pawls 232 engage the notches 23! of the disks 230, assuming, of course, that the adding Wheels of the crossfooter stand at zero. If any of the wheels do not stand at zero, then the pawl 232 coacting with such wheel and disk 230 associated with that wheel, engages the periphery of the disk 230, and consequently will not be rocked quite so far in a clockwise direction by the spring 234 as it would if it could be engaged with the notch 23!. Since all of the pawls 232 are secured to the shaft 233, all pawls are held in such position by any one disk 230. This of course means that when any one of the various denominational orders of the crossfooter do not stand at zero its respective disk 230 will not present its notch 23! to the pawl 232 and consequently the machine releasing mechanism will be locked, due to the fact that the crossfooter is not at zero on the add side thereof.

At the end of the running of a batch of checks and subtracting the amount of each check from the amount which was originally put on the plus side of the crossfooter at the beginning of the operation of the machine, the crossfooter should stand at zero.

However, should there have been an error made the crossfooter will not be at zero at the end of such run of checks, and should the op erator wish to start another series of checks the machine could not be released for operation upon the depression of a plus key, which is necessary to put into the crossfooter the total amount of the batch of checks. This is due to the fact that when the crossfooter is not at zero, as above mentioned, the pawls 232 are in the position shown in Fig. 5, and when in this position they control mechanism to prevent the clockwise releasing movement of the machine release shaft 10.

However, during the sorting of a batch of checks, as each check is entered into the machine and subtracted from the total which was first put in the machine, these pawls 232 also assume the position shown in Fig. 5, after the subtraction of the amount of the first check which is being sorted. Therefore, means is provided in this machine to free or unlock the machine release shaft 10 upon the depression of any of the minus keys in rows 2, 3 and 4, or upon the depression of the lock release key.

Associated with each of the rows of keys 66, 6! and 68, namely, rows 2, 3 and 4 (Fig. 1) is a release bar 240, only one of which is shown, that being in Figs. 5 and 6, and being the one associated with the key 6! of row 3. This bar is operated by the key pin !!4 of any of the keys 61.

An identical bar is operated by any of the minus keys 68 .in row 4. However, in connection with the minus keys 66 in row 2, and the lock release key 66, there is attached to the release bar 240 of the keys of row 3 a bar similar to the bar 240 and the key pins of the keys 66 of row 3 extend across a sufficient distance to cooperate with this bar.

This bar 240 carries a pin 24! adapted to.co.- operate with a finger 242, secured to a yoke 243 and pivoted on the shaft !24. This yoke 243 also carries an arm 244, the end 245 of which is adapted to cooperate with a flange 243 of an arm 241, which is secured to the machine release shaft 10.

Secured to a shaft 250, supported by the machine frame, is a yoke 25!. This yoke 25! has an arm 252, and a spring 253 connected thereto holds a finger of this arm against a stationary stud 254. This is the normal position of the yoke 253, as shown in Fig. 6.

Rigidly secured to the previously described shaft 233 is an arm 255 normally held in the position shown in Fig. 6 by the spring 234.

The shaft 233 is moved downwardly when the crossfooter is moved into engagement with the actuators and this shaft 233 receives a counterclockwise movement before the crossfooter is engaged with the actuators, occasioned by the contact of the arm 23! with the stationary pins 233. counterclockwise movement of the shaft 233 positions the arm 255 beneath the yoke 25!, after the shaft 233 has been moved downwardly with the totalizer frame 229.

Assuming now that the crossfooter is not at zero, this would leave the notch 23! in the position shown in Fig. 5 when the crossfooter is disengaged from the actuators. Consequently the pawl 232 could not be rocked clockwis by the spring 234 as early as described upon disengagement of the crossfooter from the actuators, and therefore as the totalizer is disengaged or moved upwardly into the position shown in Fig. 5, the upward movement of the shaft 233 causes the arm 255 to strike the yoke 25! and rock said yoke 25!, the shaft 250, and the arm 252 in a counterclockwise direction from the position shown in Fig. 6 to the position shown in Fig. 5. Integral with the above described yoke 243, which is pivoted on the shaft I24, is an arm 250, which is normally held in contact with a stud 26! on the arm 252 by a spring 262 connected to pins on the arms 252 and 260.

From the above description it will be clear that when the arm 252 is rocked counterclockwise by the arm 255, as above described, the spring 262 will rock the arm 260, the yoke 243, and the arm 244 in a clockwise direction from the position shown in Fig. 6 to the position shown in Fig. 5. whereupon the end 245 of the arm 244 is directly in the path of movement of the flange 248 on the release arm 24'! of the machine release shaft accents 17 l0, and consequently will prevent sufilcien-t clockwise movement of the arm M1 to release the machine.

A description has" just been given as to how the machine releasing mechanism" is locked whenever the erossfooter does not stand at-zero. This, as above mentioned; prevents the-release oi the machine by oepressionof oi the plus keys- Efii re-w 2 or thesingleplus-key iii" in t bottom of row 3-. However, when enter; 5;- the amounts of the checks the entry oi which constitutcs a subtract operation, it is necessary that the machine releaseshaft l-O'Ibe operated each operation, notwithstanding the fact that the crossfooter is not in its zero positionami llQiWltl'l ctanding'the fact that the end 215 e 1e arm "M l infront of the flange MG 'ancl events movement of" the arm 2-4-1; and consequently the machine release shaft 10.

Therefore. there isassociateol with each of the subtract keys Bi and 68 inrows and l, rescec tively; and also a member-f associated w-itli' the subtract keys 66' of row 2, and the lock release key in row Z'Qmeans to move'the arm i l i away from the path of movement of the flange Bet-for subtract operations. This means comprises, as has been previously'stated; the-bar 24!), shown. in Figs. 5-and 6, there being" one associated with the key 6'! of row iand the key 5301' ov' t so that whenany of the subtract key-sin her of th tworows is depressed the bar 2 16 will he l'l'lDV u tow-ardtheleft', as viewed n Figs. 5 and i3, and the pin 21" thereof, by its c htact with the finger 232 will rock the-finger "a! audits integral arm 244' counterclockwise hour the no i t er-i shown in Figi'fi into the position shown in l 6, thus moving the end MB- of the arm out of thepath of movement of the" flange 1 ou'the machine releaseshaft arm 2M, and. con-- olockwisemovement; which is necessary to release the machine, as has been previously described.

When any of the" subtract keys to deseed, their pinsextend across the bar above mentioned but not shown, whichis attached to the bar 240', associated-withthe'key t? of; row so that whenever any of these subtract-keys row 2 or whenever the lock release key of row is depressed, the arm-2M will be mo'v l t position shoWninFig. 5 into that show. so that the machine maybe" released for one a tion. At the'encl 'of these'-'operations; howeven the spring 282 'restoresthe arm Nthack into the position'shown in Fig. 5, due to'the fact that this arm 245- is connected throughthe hail 243 to the arm-250, which is rocked-clockwise by the spring 262-. I

The lock release key is used to the silently this shaft 'l'll'then can'be-eiven-its full moved from the locking position shown herein 18- into the ineffective or unlocking position which is shown in Fig. 6-, as has been previously described.

Item count mechanism Toitheleftof the'loanlc of keys 63 (Fig. 1) there are fourkeyleanlr frames 2%, only one of which is shown-,that being in Fig. '7; which hey frames are mounted on the, previously described cross rods H 2" and H3. In the key frame adjacent the bani: ofkeys 63, is mounted the previously mentioheclstar key 62-, the purpose and function of which will belat'er described.

In the three key bank frames 2'10 to the left there are no keys; 'l-"here is, however, a differential mechanis-m associated with each one of these tillGGilEjfbhllki} to the left of the bank carrying the hey t2, and these differential mechanisms shown only in dot and dash lines and designated by thereference numeral ill in Fig. 1. These differential mechanisms are standard differential mechanisms and substantially identical with the amount; differential mechanisms shown in the previously mentioned Shipley Patent No. 13193196.

Associated withthekey'banl: frame shown in Fig; V, which lies adjacent the bank of keys 53. there is a' differential mechanism which is the units or lowest orcler clifierential for the item count mechanism. r

' This item count mechanism is-for the purpose oi ceuntingl each time an item is entered in the machine, whether it be a subtract item or a plus item; and such item count is registered on incliviclual totalizers 212- (Fig. 7) which are located on the usual front and rear totalizer lines in Inachines or this type, as shown in the above mentionecl Shipley Patent No. 1,619,796. In other words; there is a totalicer 272 on the front line associated with each or the keys $7 of row 3, and the totalizer H2 onthe rear line, associated with each of the 'lreyslili-oi row l;

These four differential mechanisms for the item count mechanism are supported. by the usual hanger plates 2133 (Fig. 7) which are mounted-in'theusual manner. The diiferentials are tieci'tog'etliier by means of a tie rod 274, in the usual manner;

Only that differential which is adjacent the row of keys willhe described, and this is the differehtial'which is, as above mentioned, shown in'Fig. '7. This (inferential mechanism consists of three totalizer actuators which cooperate with the '7. All of the wheels 2% on this totalizer line are providedwith longteeth, the purpose of which is to stop the differential mechanism in zero position when taking the totals from the totali'zer which by the way, is the crossfooteiylocategi ahove'the amount gii entials associated with keys 5i.' This particu ar part of the totalizer above the item count clifierential'meehazlisms playsno particular part in this mechanism;

"Adjacent each of'the iiinerential actuators 2'55 is the usual 2-tooth transfer segment ill, norinally'held in the position shown in Fig. 7,.adja c'ent the actuators by spring 2Y8. This segment 2?? carries a square pin 2'59, which in this partieular differential mechanism is heldagainst a shoulder tilt ofth'e'trar-sfer lever 28!, pivots-cl on the usual differential pla es .232, which sup-port the actuator segments 2'15. The pivot point'ior the'tr'ansfer' levers 28l is at 283. Connected to each of the transfer levers 28| is a spring 284, which normally holds these levers against the fingers 285 of a transfer arm restoring lever 286 which operates each operation of the machine in a clockwise direction to normally restore the levers 281 counterclockwise to their normal positions, as is fully illustrated and described in the above mentioned Shipley Patent No. 1,619,796.

This restoring movement of the transfer arm 28| by the restoring lever 289 and its fingers 285 takes place at the time the differential mechanism is in its zero position, at which time the square pins 219 of the transfer segment 211 are away from the shoulders 280 so as to permit the counterclockwise movement of the transfer arms 28| by the fingers 285 of the restoring lever 286, as has been fully illustrated and described in the above-mentioned Shipley Patent No. 1,619,796.

However, there is one condition in connection with this particular bank shown in Fig. '7, and that is that after the transfer arms 28| have been restored counterclockwise they do not remain in that position because there is nothing to retain them in such position, they being moved immediately back into the position shown by their springs 294. This is for the purpose of always adding one each operation of the machine when the differential moves from its zero position into the home position, at which time the transfer segments turn the totalizer wheels 212, which are engaged with those segments 211, one step to count 1 for that particular operation of the machine.

However, this item count mechanism above described, can take place only during adding or subtracting operations, or in other words, when the total plate 2i of row I (Fig. is in its normal or add position. The means for controlling this and disabling the item count mechanism when the total control plate 2 II is out of its add position, will now be described.

During the first cycle of each totalizing operation the transfer arms 28| are given their restoring movement by the restoring lever 286.

Integral with the lowermost one of the transfer arms 29l, shown in Fig. '7 is an arm 290, carrying a pin 29| which normally lies in front of a lug 292 on a pitman 293 connected to an arm 294 Fig. 10), which is secured to a shaft 295. Also secured to the shaft 295 is an arm 296, connected by a pin 29? to a bell crank 298, pivoted on a stud 299. A pin 399 on the bell crank 299 is held normally in contact with a node of the total control plate 2|| by a spring 302 connected to the bell crank. 298. The free end of the pitman slides on the main operating shaft 303 of the machine.

The parts are shown in Fig. 10 when the total control plate 2 II is in its add position, with the exception of the arms 290 and 29|, which are shown in a position into which they are moved at the end of the restoring position of the transfer arm 2B| by the restoring lever 286. As above mentioned, immediately after the restoring movement of the arm 28| the spring 284 moves the transfer arms 28| back into the position shown in Fig. 7, and consequently the arm 290 is moved downwardly into the position shown in Fig. 7, away from that shown in Fig. 10, whereinthe pin 29| is again placed in front of the lug 292 on the pitman 293.

During the first cycle of a total-taking operation when the node 30| has been moved away from the front of the stud 300, then, when the transfer arms 28| are moved into their restored positions, which moves the arm 290 and stud 29| upwardly into the position shown in Fig. 10, the spring 302 then acts to rock the arm 296, arm

294, shaft 295, clockwise, thus moving the pitman 294 forwardly or to the left, as viewed in Fig. 10, whereupon the lug 292 is moved beneath the pin 29|, thus retaining all transfer arms 28| in their restored positions. The lowermost transfer arm 20| engages a finger 304 of the transfer lever 286 to retain the righthand and upper transfer arms 28| in their restored positions when the lug 292 is beneath the roll 29| of the arm 290; or in other words, whenever the lowermost transfer arm 28| is retained in its restored position by the lug 292.

Such conditions remain until the end of the total-taking operation at which time the total control plate 2| I is again restored to the position shown in Fig. 10, which through the stud 300 rocks the bell crank 298 clockwise, back into the position shown in Fig. 10, and this in turn, through the arms 296 and 294 restores the pitman 293 from its forwardly moved position into its rear position, shown in Figs. 10 and 7, whereupon the spring 234 rocks the transfer arm 28| clockwise and moves the pin 29| downwardly in front of the lug 292 on the pitman 293. As the lower arm 28| is moved away from the finger 304, the springs 285 of the two upper arms 28| rock the latter arms into the positions shown in Fig. 7.

To prevent the differential mechanism shown in Fig. 7, and also the three like differential mechanisms to the left, as above mentioned, from going beyond zero position, there is associated with each of these differential mechanisms 2. zero stop 3| 0, all four of which are shown in Fig. 8. These zero stops 3|0 are all secured to a shaft 3, which is supported by the hangers 213.

To drive the differential plate 282 and the differential segments 215 first clockwise and then counterclockwise to home position, there is provided the usual driver 3l2 (Fig. 7) which is given a constant movement first clockwise and then counterclockwise by means not shown herein, which is driven from the main drive shaft 303. Such means is old and well known in the art and fully illustrated and described in the above mentioned Shipley Patent 1,619,796 and also in several of the other patents above mentioned. This driver 3|2 cooperates with a latch 3|3 which is pivoted at 3|4 to the differential plate 282. The latch is normally above a shoulder 3|5 on the driver 313, so that the clockwise movement of the driver carries the latch 3|3 and consequently the differential plate 282 in a clockwise direction until a pin 3|6 on the usual arm 3|! of the usual reset spider, contacts the zero stop 3 It! thus disengaging the latch 3|3 from the shoulder 3|5 of the driver, and leaving the differential mechanism in zero position while the driver 3|2 continues on to its extreme clockwise position.

On the return of the driver 3| 2 to its normal position a surface SIB thereof contacts a stud 3|9 on the differential plate 282 and rocks the differential counterclockwise from zero position to the home position, shown in Fig. 7, whereupon the latch 3|3 is returned into the position shown, above the shoulder 3| 5 of the driver by means of the usual latch spring 320.

v Pivoted to the differential plate 282 is the usual latch arm 32|, which is connected by the usual link 322 to the latch 3 l3. The forward end of the link 322 has an arm 323, carrying a pin 324, which is engaged by the front arm 3|! of the usual reset spider.

As the drive 3! 3 moves clockwise it carries. the latch 3|3 therewith, whereupon the arm 3 23, and con equent y t e reset spider 3.57. are m ved upeird y un il. the pin 316 strikes the zero stop an), thus causing the arm 323 to st p and rook he arm 3.2K ounterclockwise, whereupon the link 32.2 d sensaeo he latch 313 from he fo t .315 of. the driver 3 2, o th t the differential. s ments orv actuators 235 wi stop in the r zero positi ns.

During sub-total and total operations the zero stops 31B r rocked counterclockwise out of th aths of their r spe tive pins 3H3 but in these item c un bank as previou ly stated, the I ns teeth on the crossfootel wheels 2 cause the tem u t differentials o stop in the zer pos tion so that totals or sub-totals are not printed from the item count totalizers 2,12. The zero stops .3 w are also moved into ineffective posi i ns u d ont l of th star soy 6.2 in a mann r and for a purpose to be later described.

To aline the iffer nti l m hani m of Fi 7, and also he iffer ntial m chanisms as ociated with the amount keys ill, there is provided the usual ligning gments 3.351, only one f which is sh wn n T ese Seemto are set differentially u d r ontrol of the amount keys 6!, and also under control of allother differentials n the machin y th u u beam link 33!, A11 ali ner 332 which is supported by arms 3%? (only one of which is shown) which arms are secured to an aliner shaft 334. At the proper time and by a camming device operated from the drive shaft 303 in the manner shown in the last mor tioned Shipley patent, the shaft 335 is rocked clockwise to disengage the liner from all of the segments 336 while the differential mechanisms are being set, and then after they have been posiitoned under control of the differentials, the aligner 3321s again enga ed. with the segments 33?! to maintain the set positions or" the beam link 33! so thatupon a second operation, the printing mechanism which is not shown herein, may be moved directly from one position to another without having to be moved back into its zero posiiton. This is known as a minimum movement device and is well known in the art.

Combination differential mechanism As has been previously stated, there is associated with the bank of keys its what is known as a combination differential mechanism. This mechanism is used for the purpose of controlling printing mechanism to print data under control of the keys 63 and during. totalizing operations this differential mechanism is adapted to be set under control of the highest orderamount wheels, so as to print the amount from said wheels to obtain the complete total from the totalizers. Also during error correcting operations this differential is controlled to function as a normal adding diirerential.

Consequently this differential mechanism is in two. parts, one of which includes the (inferential arm which is operated to set the printing mechanism each, and every regular adding operation of the machine, and the other part, which constitutes and includes the totalizer actuators is normally coupled to the differential arm but during said regular adding operation said actuators I are; uncoupled from the dilferential arm.

Briefly, this combination differential mechanism, is substantially like that shown in the United States patent to Spurlino and Grover No.

- This combination differential includes a difa ferentially adjustable arm 35!] (Fig. 10) mounted between hangers similar to the hangers 213, shown in Fig. 7,,and tiedtogether by the tie rod 214. This arm 350 carries a latch s51, pivoted at 352, and this latch as: normally cooperates with a shoulder 353' on a driver 354 which is iven a constant clockwise then a counter lockwise movement durin each operation of the machine by. means fully illustrated and do scribed in the above mentioned sliiple Patent No- 1,619,796

Al pivoted on the arm 3t?! is an. arm. 35 the upper end. of which has pivoted thereto a link 355, which is pivoted to the latch 35!, This link; 5556 has an integral arm 35?, which is used for alining and looking the latch in its diseneased position, as is illustrated and described in the, last mentioned Shipleypatcnt. The arm 355 also has a nose 358, adapted to contact the inner end of any of the depressed keys 53 in manner which is also fully i lustrated and de scribed in the above mentioned ilhipley patent, and which is also describedin the Spurlino and, Grover Patent No. 2,229,771, above mentioned. As. the arm iiilmoves upwardly the latch. 351 carries the arm atoupward until the forward end 353 contacts one of the depressed Keys 63, which causes the arm. ass to rock, and through the link 356, withdraw the latch 35! from the shoulder 353 of the driver 354, whereupon the diffew ential arm 3% will be positioned in aooordance with the key which has been depressed. Upon the return movement of thedriver 354 to its normal position, it contacts a pin 359 on the arm 35!! and restores the arm tothe normal position shownin Fig. 10.

Adjacent the arm 35!] is the usual diner-em tial plate 370, carrying the usual actuator racks 3H, and transfer segment 312, for cooperatin with the totalizers shown in Fig. 7. This plate, 378 is normally coupled to the difierential arm 35:: by a couplin pawl 313 p voted at 314' to the differential-plate aw. This couplin pawl 313 normally en ages a flat-sided pin 375, carried by the differential arm 35B; Consequently, the upward movement of the difierential arm 35. would normally, through the pin 315 and coil pline; pawl 3T3, carry the diiierential plat 3TH!- unwardly therewith and cause it to be setdil rerentiaily under the positionoi the keys. However, the lower end of the couplin nawl'3l3. carries a nin316 adaptedto cooperate with a pawl 3 11, which is secured to the shaft M l. A spline 318, connected to a fing r 319 of the couplin pawl 3 3,norm. l1y holds the coup n paw n engagement with the flattened pin 375.

During the regular adding. operations. of the machine the shaft 3H and consequently the arm 31'! are held in the position shown in Fig. 10 by means to be hereinafter described; consequently when the arm 3 .6 is moved upwardly by the driver 354 the pin 316, riding along the righthand face of the arm 317 causesthe cou pling pawl. 373 to be rocked counterclockwise and thus disengage it from the pin 375 of the differential mm 350, and this movement continues until the pin 318 arrives at and contacts the hook sac of'the arm 37?, and consequently the differential plate 311!- andthe differential actuator 31! will not be moved upwardly differentially with the differential arm 350, due to the fact that the coupling pawl 31 3 is disengaged from the pin 315 on the differential 'arm 358 Therefore the total-izer overflow wheels are- 23 not affected during such regular adding operations.

Under certain conditions it is necessary to disable the coupling pawl disengaging arm 311 to permit the differential plate 310 and the differentia1 actuators 311 to move with the differential arm 350 so that when correcting an error the differential arm 350 and differential plate 311 may be set under control of the complementary amount for this bank as determined by the key 63 which is depressed during such error correcting operation to correct this highest amount or overflow wheel of the totalizers.

This is done under control of the star key 62, and will now be described. Rigidly secured to the shaft 3| I, to which it will be remembered is also secured the arm 311, is a bell crank 390 (Figs. 8 and 10) A finger 391 of the bell crank 390 is held, by a spring 394, in engagement with a shoulder 392 of an arm 393 secured to the previously described shaft I56. Also secured to the shaft I56 is an arm 395 (Figs. 7, 8 and 10) which carries a pin 396. The arm 393 is held in the position shown in Fig. 10 by a torsion spring 391 (Fig. 8) having one end bearing against the hanger 213, for this combination bank, and the other end bearing against a pin 398 of an arm 399 secured to the shaft I56. This same spring 391 also holds the pin 396 in the normal position (Fig. 7) ready to be acted upon by means under control of the star key 62 as will be later described.

Mounted in the key frame bank 210 is the previously mentioned star key 62. The star key carries the usual pin 400, which is adapted to cooperate with and operate a bar 40!, pivoted at its upper end on an arm 402 and at its lower end to a lever 403, both of which are mounted on the key frame 210. A pin 404 on an arm 405 pivoted at 406 in the key frame 210 is normally held against the left side of the arm 403 by a spring 401. This arm 405 has an integral finger 408 which lies above the pin 396 in the arm 395.

From the above description it will be clear that whenever the star key 62 is depressed its pin 400 will move the bar 40! downwardly and rock the arm 403 clockwise, which through the pin 404 will rock the arm 405 and finger 408 counterclockwise whereupon the finger will, through its contact with the pin 396 rock the arm 395 and consequently the shaft I56 in a clockwise direction against the action of the spring 391. This clockwise movement of the shaft I56 rocks the man 393 clockwise and disengages the shoulder .392 from the finger 39! of the bell crank 390.

However, the spring 394 cannot function immediately upon depression of the star key 62 because in the normal position the bell crank 390 is held in the position shown in Fig. 10, by a stud 42l on an arm 422 pivoted on a rod 423. This arm 422 is rocked, by means later described, to move the pin 42! upwardly, and position it in front of a recess 420 in the bell crank 390, and when this occurs the spring 394 rocks the bell crank 390, shaft 3| I, and arm 311 counterclockwise, moving the hook 380 out of the path of movement of the pin 316, and consequently when the arm 350 is moved upwardly the coupling pawl 313 will not be disengaged from the pin 315 on the differential arm 350, and since the coupling pawl is carried by the differential plate 310, this plate and the differential actuator 31I will be moved upwardly under the control of the depressed key 63 to add the complement, determined by saidkey, into.

the totalizer wheel associated with this combinetion bank.

It has just been described how the depression of the star key 62 removes the latch arm 393 from its contact with the finger 39l of the bell crank 390 to permit the spring 394 to rock the bell crank 390 and consequently the arm 311 in a counterclockwise direction to cause the coupling pawl 313 to remain coupled to the differential actuator 311.

As above mentioned the spring 394 cannot function until the arm 422 is moved. I'his arm 422 is connected by a bail 424 to an arm 425 carrying a stud 426 held by a spring 421 against a cam plate 420 secured to the main drive shaft 303.

Shortly after the beginning of the operation of the machine and consequent clockwise movement of the shaft 303 the cam 428 is moved from beneath the stud 426, whereupon the spring 421 rocks the arms 422 and 425 clockwise and moves the stud 42! opposite the recess 420 of the bell crank 390. Consequently after depression of the star key 62 and removal of the latch arm 393, then when the cam 428 is removed from the stud 426, the spring 394 rocks the bell crank 390, shaft 3i I, and arm 311 counterclockwise, in the manner previously described, to permit the pawl 319 to remain coupled with the pin 315.

Since the shaft 3| 1 is rocked counterclockwise by the spring 394, all four of the zero stops 3l0,'

for the four item count differentials, are moved counterclockwise out of the paths of their respective pins 316 (Fig. '1) thus permitting all item count differentials to go to the 9 position during the error correcting operation in order to correct the item count in the counter associated with the totalizer in which the error occurred. 9 being the complement of 1 when said 9 is added to the amount in the item counter it is the same as subtracting 1, thus the item count error is thereby corrected.

Near the end of the error correcting operation the cam 428 rocks the arms 425 and 422 counterclockwise whereupon the pin 42I rocks the bell crank 390, shaft 3, arm 311 and zero stops 3l0 with the differential arm in order to sub totalize the overflow wheel associated with the combination differential.

The means for effecting such control over the coupling pawl disengaging arms will now be described. In Fig. '7 there is shown the usual shaft 43l having secured thereto arms 432 (only one of which is shown), said arms supporting a rod 433. This rod 433 is the usual rod for moving the zero stops of the regular amount banks into in effective positions during total and sub-total operations in the well known manner as illustrated and described in the United States Patent of M. M. Goldberg No. 2,175,346, dated October 10, 1939.

In this patent is described the two separate movements given to the shaft 43I the first of which moves the rod 433 down until it touches the arm 408 and the second movement of the rod 433 rocks the arm 408 which in turn rocks 25 the item-assassins sl'mft' ilfit to 'move the latch 39B awarifrointhe finger 3%, "after which the spring 394 can function tenock the-ceupling pawl disabling arm 31 1 when *the'cam l zt'rem'oves the pin 42 frorn the face of the finger QB! in the manner above described.

Therefore, the 'suo tota l maw be taken from the overt-low wheel o'f'thc 'c-rossf'o'otcr this com b'in-ation hank l i iterential mechanism.

The star key $2 also functions to operate a normally open microsw itch 43% (Figs. 7, 79 and ll?) which is in the machine release circuit. This switch 435 is mounted on awbracket 43E carried by the machine frame. "-lihe bracket 4'35 supports a bushing 431 in which is freely mounted plunger 4'38.

It will be remembered that whenever thes'tar key 62 is depressed the arm- 412:5 is rocked in a clockwise direction, when thi occurs the lower end of the no contacts the plunger 4-18, moving it toward th 9) a distance su fficieni'. to its left end to contact :and move a, :m icros witch pli-in'ger 3 9 to tire ie-ft :an amount suffioient to close the :switch #735.

M achine release solenoid control has been previol-isiy described, thema'chine is adapted to he released upon operation of the solenoid '81., shown lnEig. emu diagrammatically in Fig. 1 1 This solenoid ifl'lais ra circuit across th'e'l-ines $5 39 M4, to which there is a supply of current of r to .115 -'V01 ts Cc-.60 cycles.

T-heswitch .132 is adapted to he closedupou the depression of any of the lceys 67 :68 of rows '3 and '4, rcspectiuelmand also upon the depression of --a'ny of "the three upper .keys to of row :or the depression :0)? any of the four lower keys of row 2, Upon depression of any of the above. mentioned keys a circuit is completed .iromiline $6.1 through-the normally closed switch 221, through the switch 132 closed :by the depression of any of the above mentioned keys, to line 443, through the solenoid 81 which enersizes this solenoid 8*! to cause the machine to release.

Whenever there has been an el'lf-Ol made the operator depresses the Error key to determine the amount of the error and during such operation the error keyBl-i'of row i closes the switch was which completes a circuit as follows: from Ml through switch 2'68, line 433, through the solenoid 37, thus causing the machine to released upon depression of the Error key 65 of row i. Also during this operation the switch '22"! paused to open by the clockwise movement of the bell crank 223 (Fig. 12) in the manner previouslydescribed, and therefore, since this switch is held opcn, the-closing ol the switch 132 in an immediate subsequent one action not complete the .circuitand the ucannot lo released upon the :c'lepression lilfa'l'lh of the keys of rows 3 and 4,,orany of the upper three keys or lower four keysyof row 2.

.It i be rememberedthat afterthe depression of the Error key, which is for the purpose of taking asuo-total of the crossfooter to find out the amount of the error, the operator then depresses the key 612 in comomation with the particular key E7 01" 3 8, wherein the error occurred When this occurs the depression of the star key 'clo es the switch 2 35, which follnwe' dept ion of one of the keys '6, All or closes i switch whereupon the air swl' 26 to the colonel i1 Bl, whereupon the niac'hme may he :releasetl upon tlepression of the star key 521, followed by "depression of "the proper key 436, E1 or 6-8.

'At times it may he desirable to release the machine following a locku-p by an error, the depression of the lock release lacy 65, followed by depression of one of the keys or 58, and when this occurs, depression of the MEHZK release hey closes the switch 4'62, whereupon a circuit is established from line M l through switch 152, line M l. switch 1 line l' lt, towthe solenoid T81, whereupon the machine may be released by dcp1 on or lock release key followed by-Idepressiuncf of the laws t! or ot.

:As above mentioned, the switch 221, which "is continues by une differential positioning of :the total "control plate 2H, is closed at all times except when the differential is in the :error position. However, when an error has been made, as above mentioned, the switch 2 21 is open, and 'one of the keys 15! or 68, to "which the error was charged, is new dopresseli, closing theisw itch l-'32, but the machine noes not operate because the circuit is still "-l'oro'ken at the switch 2 2?. However, the sorting box compartment indicator is operated in the manner tobe hereinafter described and the check :error is removed from the lain with the open indicator, and the other checks replaced. Then upon depression of the star ke'y G'Z which is the last key pressed when setting the complement of the amount which caused the error, to corre'ct the total, the switch 4335s closed to complete the circuit as above describetl through "the switch 435 and switch 132, which is closed, even though the switch M1 is open.

-21 suitable cabinet or casing (not shown) co-vers the mechanisms described to protect them from dirt and unauthorized manipulation. 'Su' italole doors under lock and key are arranged in convenient locations for "proper inspection of the mechanisms.

Sorting compartments As has been previously stated, the present invention includes a sorting device comprised of a housing or cabinet containing one or more rows off, filing compartments located in stepped arrangement. This sorting device is similar to that illustrated and described in the above mentioned Spurlino and Ranch Patent No. 2,416,598, and will be but .loriefiy described insofar. as the sorting device is concerned. In the present case, more particular attention is directed to the control of the operation of the indicating means or signal wherein the indicating means or signal is retained in an operated position a longer time than in previous machines, such as disclosed in the above mentioned Spurl-i-no and Ranch patexit, to give the operator more time in which to deposit the checks inthe sorting bins or compartments associated with th particular indicator which has been operated to indicate that that is the particular compartment into which the checks should be deposited, this of course, being when checks are recordedfin the machine and "sorted in connection with bank proof operat-ions.

sorting device will now be described, it being illustrated in Figs. 14 to 17 inclusive. These compartments are formed byside walls 45% and 45! with slanting partitions "452 and bottoms 4 53. Thepartitions 452 havevs'ldtslfi l formed therein whereby the operator'mayat any time remove assorted records or checks from the compartments. The compartments are arranged in step-like fashion, which facilitates the convenient filing of the record material therein.

Each compartment is provided with a signaling member or indicator 455 (Figs. 14 to 17) to act as a signal to the operator to designate into which compartment said operator should file or place the check.

This indication is accomplished by the upper side of the indicator 455 being finished in the same color as the compartment, while the underside of the indicator is finished in a contrasting color to act as a signal to the operator. Upon operation of the indicator, the contrasting color of the underside thereof will be exposed to view, thereby indicating to the operator which compartment should receive the recorded material.

The present indicators 455 are somewhat larger than those of the above mentioned Spurlino and Rauch patent in that in the present case these indicators 455 cover substantially the entire top of the compartment, thus preventing the operator from getting the check in the wrong compartment by accident because there is not sufi'icient room between the edges of the indicator 455 and the back of the partition 452 to get a check in unless the operator deliberately tries to do so, which of course is not the normal or proper operation.

The indicator 455 is secured to a shaft 46!, loosely mounted on a bracket 462 secured to the partition 452. Freely mounted on the shaft I is a bell crank 463, one arm of which is operatively connected to the indicator 455 by means of a torsion spring 464. The spring 464 is mounted around the shaft 46l and straddles one arm of the bell crank 463 and also has both of its ends hooked onto the indicator 455, as is clearly shown in Figure 17. The purpose of this flexible connection between the bell crank 463 and the indicator 455 is threefold; namely, silencing the noise; avoiding vibration and rebound, and providing quicker and smoother action. With such an arrangement the solenoid does not have to overcome the inertia of the indicator instantly at the beginning of the movement.

Through such flexible connections the bell crank 463 and the indicator 455 ar adapted to move as a single unit. The arm of the bell crank 463 which coacts with the indicator 455 carries a rubber bumper 465, which extends beyond the upper and lower sides of such arm as i shown in Figs. 14 and 15. The lower portion of the rubber bumper 465 is normally held in contact with the indicator by the torsion spring 464, while the upper portion of the bumper is adapted to strike the bracket 462 when the bell crank 463 is rocked clockwise to move the indicator 455 into effective or indicating position. The other arm of the bell crank 463 is connected by a link 466 to an armature 461 of a solenoid 468, mounted on the partition 452. The partition 452 is slotted to accommodate the arm of the bell crank 463 and a portion of the link 466 so there will be no interference between the parts and the record material deposited in the receiving compartment. For the same reason the lower portion of the link 466 and the solenoid 468 are located below the bottom 453 of the compartment, as illustrated in Fig. 16. A tension spring 469, fastened at one end to a stud 410 in the bracket 462 and at its other end to a stud "I, carried by the link 466, normally serves to hold the link 466 and the bell crank 463 in the position shown in Figs. 14 and 16, thereby maintaining the indicator 455 in its ineffective or nonindicating position, as hown.

Upon energization of the solenoid 468 the armature 461 is forced downwardly and through the link 466 rocks the bell crank 463 clockwise until the latter is stopped by the rubber bumper 465 striking the bracket 462. The bell crank 463 will at this time, through the flexible connection formed by the present spring 464, between the bell crank 463 and the indicator 455, rock the indicator 455 clockwise about the shaft 46! until it reaches a signaling or indicating position. whereupon its contra-stingly colored under-surface is exposed to the view of the operator, thus attracting the operators attention to its respective compartment, for the purpose of having record material deposited therein by the operator.

In former machines, and particularly that shown and described in the above mentioned Spurlino and Ranch patent, the indicator remains in its effective or indicating position only until the control key was returned to its normal undepressed position which de-energizes the solenoid which occurs near the end of operation of the accounting machine.

However, in the present case the de-energization of the solenoid is delayed for a definite period in order to give the operator more time to file the record material in the compartment. This socalled delayed action and the de-energization of the solenoid will be hereinafter described.

However, when the solenoid is de-energized the spring 46! moves the link 466 upwardly and rocks the bell crank 463 counterclockwise, which movement of the bell crank will likewise be transmitted to the indicator 455 to return the latter to its normal non-signaling or non-indicating position.

The magnets 468 are energized upon depression of the keys 61 and 68 in rows 3 and 4, respectively, there being one compartment associated with each of those keys, and also the keys 66 of row 2, numbered [9 and 20.

Wiring diagram and electrical controls for the delayed action of the compartment indicators or signal devices Before describing the circuits for causing operation of the compartment indicators and the delayed action circuit which causes the indicator to remain in its indicating position after the completion of the machine operation, there are two switches and means for operating them, which are in the circuit and will now be described. These switches are shown in Figs. '1, 12 and 19. Fig. '7 shows the switch and the means for operating the switch, which is in the holding circuit to prevent release of the indicator operating magnet 468. The other switch, which is shown in Figs. '7 and 19 is a switch operated by the indicator liner line to close the circuit through a condenser which makes contact through a magnet, to cause that magnet to operate a switch in the holding circuit for the indicator operating magnet 468.

The above mentioned holding switch 415 is shown in Fig. 12, and is mounted on a bracket 416, supported by the machine side frame. This switch 415 is normally open.

Pivoted on a stud 411 on the machine side frame is an arm 418 having an insulating roller 419, normally contacting the switch 415. The arm 418 has a, finger 460, normally held, by a spring 463, against a low surface 481 of a cam 

